Reduction of delivery pressure fluctuations in a gerotor pump

IF 1.5 4区 工程技术 Q3 ENGINEERING, MECHANICAL
Kamran Nazir, Chang Hyun Sohn
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引用次数: 0

Abstract

Generated rotor (gerotor) pumps have commercial applications in oil supply pumps and compressors. Unfortunately, they produce an excessive amount of noise while in operation. The present study focuses on reducing the noise, which is caused due to pressure oscillations in the fluid, and vibration levels when a gerotor pump is in operation. Three-dimensional numerical simulations were performed on the gerotor pump using the dynamic mesh method. The flow field was simulated using the commercial software Ansys Fluent. The mesh motion was provided in the form of a user-defined function. Computational fluid dynamics analysis was performed for different combinations of delivery pipe length and diameter, and their effects on delivery pressure were analyzed. It is observed from numerical results that the pressure oscillations are reduced around 20 % by increasing volume of port or pipe region, which in turn reduces the noise levels. It is concluded that the pressure oscillations during the fluid flow are highly dependent on the volume of the delivery pipe.

减少齿轮泵的输送压力波动
发电机转子泵在供油泵和压缩机中具有商业应用。遗憾的是,它们在运行时会产生过量的噪音。本研究的重点是降低由于流体中的压力振荡而产生的噪音,并降低发电机转子泵运行时的振动水平。采用动态网格法对齿轮泵进行了三维数值模拟。流场使用商业软件 Ansys Fluent 进行模拟。网格运动以用户定义函数的形式提供。针对输送管长度和直径的不同组合进行了计算流体动力学分析,并分析了它们对输送压力的影响。从数值结果中可以看出,通过增加端口或管道区域的体积,压力振荡降低了约 20%,这反过来又降低了噪音水平。由此得出结论,流体流动过程中的压力振荡与输送管道的容积有很大关系。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Mechanical Science and Technology
Journal of Mechanical Science and Technology 工程技术-工程:机械
CiteScore
2.90
自引率
6.20%
发文量
517
审稿时长
7.7 months
期刊介绍: The aim of the Journal of Mechanical Science and Technology is to provide an international forum for the publication and dissemination of original work that contributes to the understanding of the main and related disciplines of mechanical engineering, either empirical or theoretical. The Journal covers the whole spectrum of mechanical engineering, which includes, but is not limited to, Materials and Design Engineering, Production Engineering and Fusion Technology, Dynamics, Vibration and Control, Thermal Engineering and Fluids Engineering. Manuscripts may fall into several categories including full articles, solicited reviews or commentary, and unsolicited reviews or commentary related to the core of mechanical engineering.
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